| // Copyright (C) 2017 Igalia, S.L. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| esid: sec-dataview.prototype.getbigint64 |
| description: > |
| Return values from Buffer |
| info: | |
| DataView.prototype.getBigInt64 ( byteOffset [ , littleEndian ] ) |
| |
| 1. Let v be the this value. |
| 2. If littleEndian is not present, let littleEndian be undefined. |
| 3. Return ? GetViewValue(v, byteOffset, littleEndian, "Int64"). |
| |
| 24.3.1.1 GetViewValue ( view, requestIndex, isLittleEndian, type ) |
| |
| ... |
| 14. Let bufferIndex be getIndex + viewOffset. |
| 15. Return GetValueFromBuffer(buffer, bufferIndex, type, isLittleEndian). |
| ... |
| |
| 24.1.1.6 GetValueFromBuffer ( arrayBuffer, byteIndex, type [ , isLittleEndian |
| ] ) |
| |
| ... |
| 8. If isLittleEndian is false, reverse the order of the elements of rawValue. |
| ... |
| features: [DataView, ArrayBuffer, DataView.prototype.setUint8, BigInt] |
| ---*/ |
| |
| var buffer = new ArrayBuffer(16); |
| var sample = new DataView(buffer, 0); |
| |
| sample.setUint8(0, 0x27); |
| sample.setUint8(1, 0x02); |
| sample.setUint8(2, 0x06); |
| sample.setUint8(3, 0x02); |
| sample.setUint8(4, 0x80); |
| sample.setUint8(5, 0x00); |
| sample.setUint8(6, 0x80); |
| sample.setUint8(7, 0x01); |
| sample.setUint8(8, 0x7f); |
| sample.setUint8(9, 0x00); |
| sample.setUint8(10, 0x01); |
| sample.setUint8(11, 0x02); |
| sample.setUint8(12, 0x80); |
| sample.setUint8(13, 0x7f); |
| sample.setUint8(14, 0xff); |
| sample.setUint8(15, 0x80); |
| |
| assert.sameValue(sample.getBigInt64(0, false), 0x2702060280008001n, "0, false"); |
| assert.sameValue(sample.getBigInt64(1, false), 0x20602800080017fn, "1, false"); |
| assert.sameValue(sample.getBigInt64(2, false), 0x602800080017f00n, "2, false"); |
| assert.sameValue(sample.getBigInt64(3, false), 0x2800080017f0001n, "3, false"); |
| assert.sameValue(sample.getBigInt64(4, false), -0x7fff7ffe80fffefen, "4, false"); |
| assert.sameValue(sample.getBigInt64(5, false), 0x80017f00010280n, "5, false"); |
| assert.sameValue(sample.getBigInt64(6, false), -0x7ffe80fffefd7f81n, "6, false"); |
| assert.sameValue(sample.getBigInt64(7, false), 0x17f000102807fffn, "7, false"); |
| assert.sameValue(sample.getBigInt64(8, false), 0x7f000102807fff80n, "8, false"); |
| |
| assert.sameValue(sample.getBigInt64(0, true), 0x180008002060227n, "0, true"); |
| assert.sameValue(sample.getBigInt64(1, true), 0x7f01800080020602n, "1, true"); |
| assert.sameValue(sample.getBigInt64(2, true), 0x7f018000800206n, "2, true"); |
| assert.sameValue(sample.getBigInt64(3, true), 0x1007f0180008002n, "3, true"); |
| assert.sameValue(sample.getBigInt64(4, true), 0x201007f01800080n, "4, true"); |
| assert.sameValue(sample.getBigInt64(5, true), -0x7ffdfeff80fe8000n, "5, true"); |
| assert.sameValue(sample.getBigInt64(6, true), 0x7f800201007f0180n, "6, true"); |
| assert.sameValue(sample.getBigInt64(7, true), -0x807ffdfeff80ffn, "7, true"); |
| assert.sameValue(sample.getBigInt64(8, true), -0x7f00807ffdfeff81n, "8, true"); |